It is commonplace for a successful bidder at a non-judicial foreclosure sale to arrive at the newly purchased property, only to find someone living there who claims to be a rightful tenant. News of squatters living in foreclosed and bank-owned homes is an almost daily occurrence, but many lenders fail to understand the Washington State and Federal laws regulating eviction of tenants in post-foreclosure settings. This checklist provides steps to consider when dealing with a tenant-occupied property purchased at a foreclosure sale.